noun
                                                a quantity that does not vary
                                                                                                Synonyms
                                                
                                                
                                                                                             
                                                                                        
                                                noun
                                                a number representing a quantity assumed to have a fixed value in a specified mathematical context
                                                
                                                                                                Examples
                                                
                                                                                                        - the velocity of light is a constant
 
                                                                                        
                                                adjective
                                                unvarying in nature
                                                                                                Synonyms
                                                
                                                
                                                                                                Examples
                                                
                                                                                                        - maintained a constant temperature
- principles of unvarying validity
 
                                                                                        
                                                adjective
                                                steadfast in purpose or devotion or affection
                                                
                                                                                                Examples
                                                
                                                                                                        - a man constant in adherence to his ideals
- a constant lover
- constant as the northern star
 
                                                                                        
                                                adjective
                                                uninterrupted in time and indefinitely long continuing
                                                                                                Synonyms
                                                
                                                
                                                                                                Examples
                                                
                                                                                                        - the ceaseless thunder of surf
- in constant pain
- night and day we live with the incessant noise of the city
- the never-ending search for happiness
- the perpetual struggle to maintain standards in a democracy
- man's unceasing warfare with drought and isolation
- unremitting demands of hunger